1 . The invention of smart phones changed the world in many ways. (改为一般疑问句)
______ the invention of smart phones change the world in many ways?
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2 . I was studying for the test when the rainstorm came. (对划线部分提问)
______ were you doing when the rainstorm came?
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3 . Please follow the rules. Don’t ______ (触碰) the photos in the museum. (根据汉语提示单词拼写)
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